Author's review

PowerBright allows you to toggle your brightness between maximum and previous/minimum by holding a configured hardware button for a configured time.

You may also hold the Page-Down/Up buttons too, to adjust the brightness down/up respectively - the step value and treshold are configurable for your convenience.

At last, you may tell PowerBright to ensure old/min/max brightness at power-off, hence saving battery at next power-on and avoiding the flashing effect of a high brightness when you turn on your device at the dark, or starting fully bright.